Conference Program - LOPE-C 2011

SCIENTIFIC CONF. | WEDNESDAY-JUNE 29, 2011
Track 4
Printing Technologies (11:30 am - 01:20 pm) | LOCATION HARMONIE D / LEVEL C2
01:00 pm e-LIFT: a laser printing technology for organic electronics
Dr Philippe Delaporte,
CNRS - Mediterranean University, director of research, France
The development of a simple process allowing the deposition of a wide variety of materials, with high spatial resolution is of great interest for the manufacturing of future
smart organic electronic devices. The objective of the e-LIFT European project (FP7) is to demonstrate the integrability of a new laser process in the industrial world of
electronic device manufacturing for the localised deposition of organic and inorganic materials under liquid or solid format.
The optimization of the Laser-Induced Forward Transfer (LIFT) process has been performed during the first step of the project, and the potential and limitations of this
technique will be presented. The LIFT process has then been used to print the building blocks (sensors, OTFT, OLED) of future organic electronic devices. We
demonstrated the direct laser printing of photosynthetic material (thylakoid membranes) onto low cost non-functionalized screen printed electrodes (SPEs) for the
fabrication of photosynthesis-based amperometric biosensors. We performed successful printing of polymers layers on surface acoustic wave (SAW) sensor structure by
LIFT, leading to sensors with sensitivity for selected polymers down to 5 ppm. Functional OLED pixels have been printed by LIFT using MEH-PPV based structures which
reach almost the same efficiency as pixels prepared by standard methods. Finally, Organic Thin Film Transistors (OTFT), with mobility of 5.10-3cm²/V.s using PQT
semiconductor, have been printed.
The results of this project will pave the way to the definition of a laser printing prototype together with reliability and productivity considerations.
01:20 pm LUNCH BREAK
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